Expected effect
Monitoring results showed that several years later the planned compensation and development goals within the area ‘Hahnöfer Nebenelbe/Mühlenberger Loch’ such as conservation and establishment of shallow water areas, were only partly achieved, i.e. the channel silted up in its eastern end (see Fig. 2). Therefore further investigations by the Federal Waterways Engineering and Research Institute (BAW) were set up which should deliver a proposal for the optimization of the function of the channel. The results of the hydrodynamic modeling did not lead to any good solution i.e. to regain the missing 18 ha shallow water area. Furthermore a stable morphological state without any additional dredging could not be achieved.
In 2012 HPA decided to restore the eastern end of the ‘A+E-Rinne’ in order to fulfill the compensation needs by regaining the lost shallow water area.
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Reports / Measures / Tools